HYDRAULICALLY OPERATED DRIVE OF SULFUR HEXAFLUORIDE SWITCH Russian patent published in 1999 - IPC

FIELD: high-voltage equipment. SUBSTANCE: invention refers to hydraulically operated drives of gas switches with arc extinction devices of autocompression type. Proposed drive has working power cylinder which piston is mechanically connected via rod to mobile contacts of switch. Space above working cylinder is permanently coupled to hydraulic accumulator filled with working fluid under high pressure. Cylinder of hydraulic accumulator has mobile piston resting against mobile cover of bellows filled with compressed gas. Lower immobile cover of bellows is born against lower partition that is made fast to center partition with the use of housing. Center partition together with upper partition and four angle pieces form power supporting framework. Switch is placed on upper partition. Lower part of framework has heels for attachment to foundation. EFFECT: possibility of operation of drive without usage of additional supporting structures. 5 cl, 1 dwg